October 30, 1914.

THE COLLIERY GUARDIAN.

943

THE ISCi FOUNDRY COMPANY LTD.,

RAILWAY PLANT & GENERAL ENGINEERS,
Switches, Crossings, Turntables, Water Cranes, Girders, Bridges,
Roofs, Pipes, Pumps, Wagons, Tanks, Engines, Boilers, Cranes,
Works: NEWPORT, MON.

London Offioe : 16 & 17 Devonshire Sq. Bishopsoate St., E.C.

Mining BOOKS

At Tremendous .deductions ! New Books at 25 per cent.
Discount! Books on Mining, Technical and all other Sub-
jects. Sent on Approval. State Wants. Send for Lists.
Books Purchased. W. & G. FOYLE, 121-123, Charing
Cross Road, London, W.C.

fWOODITE'

The best material for

Conical GAUGE GLASS RINGS

in all sizes and sections.

For Valves, Joint Rings, Pump

Cups, Ram Rings, Packing Rings.

Price List and full particulars on application to—

WOODITE CO., Mitcham Common, Surrey.

British Manufacture Best Quality at Lowest Prices.
Every description either separate or in cases.
SPECIAL 12 in. CARDBOARD PROTRACTOR,
reading to 1°, at 2«. 6d., postage Od.

ILLUSTRATED CATALOGUE ON APPLICATION.

WU MARI IN ft Mathematical Drawing and Surveying
■ n. nMnMllU; Instrument Manufacturer,

47, Finsbury Pavement, London, E.C.

Established 1851.	Factory—HACKNEY, E.

British Insulated & Helsby Cables Ld.,

ELECTRICAL CABLE MAKERS & ENGINEERS.

REGD. TRADE MARK.

Works: Prescot, Helsby, & Liverpool.

SEE LARGE ADVERTISEMENT EVERY FOURTH WEEK.

First-class

Medals—

Paris, 1885;

London, 1862.

SHELTON” IRON.

“SHELTON” STEEL U"=J

Gold Medal*—
Parls, 1878;
Melbourne,
1881.

“GRANVILLE” PIG IRON ("a

Steel Pit Girders & Colliery Rails a Speciality; also High-class Bar Iron for Couplings, &c.

IRON & STEEL BARS, ANOLES, TEES, CHANNELS, GIRDERS,
PLATES & SHEETS, STEEL BILLETS, BLOOMS & SLABS.

Enquiries to—

THE SHELTON IRON, STEEL & COAL CO. LTD., 1^X7

Or 122, Cannon Street, London. E.C.

Telegraphic Address: “Shelton, Stoke-on-Trent.” Tel. No. 11 and 253. 1 Telegraphic ^iressSheltonian, London.” TeL No. 886 Bank.

^Illlllllllllllllllllllllllllllllllllllllllllllllllll Clear ‘ Flowline



No friction—no obstruction. You must realise the importance of this improve-
ment in full-way cock construction, especially as it does not increase cost.

illcoxs

Elliptic Full-way Cock
possesses a full bore with a perfectly clear way ; consequently there is no more friction at the
valve than in straight run of pipe. It tapers from a circular inlet to an elliptical bore in the
centre, and thence to circular outlet. IT RETAINS AN EQUAL AREA RIGHT THROUGH.

Made in all iron, iron with gunmetal plugs, also in gunmetal, or with special Bathed Plugs for acids, in
varying sizes from iin. to 6 in. (and larger to order). Tested to 200 lbs., this unique cock will be found
to give entire satisfaction under the severest conditions.

W. H. WILLCOX & CO. LTD.,

32-38, Southwark Street, LONDON, S.E.

Bore

Write
TO-DAY
for detailed
particulars
and
prices.

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Semet-Solvay Coke Ovens

SECTION OF OVEN

SHOWING SOLID CONSTRUCTION.

Strongest in Design.
Separate sets of flues to each oven.
Very low Maintenance Cost.

“DIRECT” AMMONIA RECOVERY PLANT,
giving increased yield of Sulphate, with less
Labour, and a saving in Steam consumption.

THE COKE OVEN CONSTRUCTION CO. L!

Howard Chambers, 155, Norfolk Street, SHEFFIELD.